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Why does a water pump becomes ineffective, when water ha to
be raised through a height grater than 30 ft. ?
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Answer Posted / bob
It truly depends on whether the pump is a suction pump or a
pressure pump. In a suction pump, you cannot pull a pressure
greater than the atmosphere, and so the size of the column
is limited. A pressure pump, i.e., one that pumps from the
bottom rather than pulls from the top, is limited only by
the force of the pump.
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